82852405 has 4 divisors (see below), whose sum is σ = 99422892. Its totient is φ = 66281920.

The previous prime is 82852403. The next prime is 82852447. The reversal of 82852405 is 50425828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54272689 + 28579716 = 7367^2 + 5346^2 .

It is not a de Polignac number, because 82852405 - 2¹ = 82852403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82852403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8285236 + ... + 8285245.

It is an arithmetic number, because the mean of its divisors is an integer number (24855723).

Almost surely, 2^82852405 is an apocalyptic number.

It is an amenable number.

82852405 is a deficient number, since it is larger than the sum of its proper divisors (16570487).

82852405 is a wasteful number, since it uses less digits than its factorization.

82852405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570486.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 82852405 is about 9102.3296468542. The cubic root of 82852405 is about 435.9483515539.

The spelling of 82852405 in words is "eighty-two million, eight hundred fifty-two thousand, four hundred five".